CVE-2025-62354Public exploitNetwork attack vector

Arbitrary code execution via shell brace expansion

Published Nov 26, 2025 · Updated Nov 26, 2025

OS command injection in Anysphere Cursor 1.3.4 and later before 2.0 allows remote attackers to execute arbitrary code via crafted instructions. The Run Terminal allowlist parser approves a command before bash or zsh expands brace syntax that embeds an unapproved command. Exploitation requires Autorun Mode with Use Allowlist and a bash or zsh shell, after which the injected command runs with the Cursor process's privileges.

CVSS severity9.8
Critical
EPSS probability1.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Anysphere Cursor 1.3.4 and later before 2.0 allows remote attackers to execute arbitrary code via crafted instructions. The Run Terminal allowlist parser approves a command before bash or zsh expands brace syntax that embeds an unapproved command. Exploitation requires Autorun Mode with Use Allowlist and a bash or zsh shell, after which the injected command runs with the Cursor process's privileges.

The record

CVE
CVE-2025-62354
Published
Nov 26, 2025
Updated
Nov 26, 2025
Vendor
Anysphere
Product
Cursor
Classifications
CWE-78, CAPEC-88, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 26, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.3.4 <2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Anysphere · Cursorversion=1.3.4 <2.0

Published CVSS scores

9.8HiddenLayerCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC-88OS Command Injection
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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